Patient Data
Gender: Female
From the case:
Rigler sign (pneumoperitoneum)
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/20570/annotated_viewer_json?lang=us"}
From the case:
Rigler sign (pneumoperitoneum)
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/39491/annotated_viewer_json?lang=us"}
Annotated image.
Case Discussion
Rigler sign is a reliable indicator of pneumoperitoneum on a supine abdominal radiograph. The internal and external air (in bowel and in the peritoneal space, respectively) highlights the bowel wall, like a smooth line.
There is a large dome sign as well.